Machine for forming brake-shoes.



No. 832,633. PATENTED OCT. 9, 1906.

E. J. SNOW.

MACHINE FOR FORMING BRAKE SHOES.

APPLICATION nun r1112. 17. 1905.

3 sums-sum 1v ATTORNEYS rn: NORRIS Per: erayanmar, 114 c PATENTED OCT.9, 1906.

'E. J. SNOW. MACHINE FOR FORMING BRAKE SHOES.

APPLICATION FILED FEB.17,.1905.

3 SHEETS-SHEET 2.

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; HVVENTiJWF lay/ law fl ATTORNEYS Mimi/MES 58; 1. @X/MM omen alwu-nmcrou, n. c.

PATENTED OCT. 9,1906.

3 sums-sum s.

E. J. SNOW.

MACHINE FOR FORMING BRAKE SHOES.

APPLICATION FILED FEB. 17. 1905.

Wm m vm 7 0 0 M 4 Z I V! B Mv/ LIH W 2 6 wflm a z a l w W W Be it knownthat I, ELME'R J. zen of the United States, and a resident of thefollowing is a specification.

machines for forming steel-back shoe after' the back has been,

device of this character which shall be simple and effectively performits functions.

-view, partly in side elevation and partly in tional view showing thepin punch in its raised position. Fig. .5 is'a sec-x. tional viewshowing the severalfparts in their. positions after the formation 0spring mechanism.

consisting rear or back plate 10, and t0py11, preferably;

' the top 11 4s through the UNITED LMER' J. sNo w; or MAHWAH. New,lIERsEY, ASSIGNOR iro AMERICAN;

BRAKE SHOE & FOUNDRY COMPANY, QF JERSEY CIT, NEW JERSEY, 'A CORPORATIONOF NEW JERSEY? l I MACHINE. FOR F'ORIIIIZINIGI BRAKE-SHOES.

No. 832,633. Specification of grettersPaten t. v. iatented oat. 9,1906.

application the February 117. I905. SerialfN h. -2 46,005.l Y

I i p.

'1 to hold thelatter inits several different relative positions.

From the undenside 'of thetop plate 1 1 de- Jpends the well orreceptacle 19, out-of wh ch eads the passageway 20 and with which u 'Toall whom it may cortcerjt? SNOW, a citi- Mahwah, in the county of Bergenand State: of New Jersey, have made and invented certain new and usefulImprovements in Mar;- connects an opening 21, formed iii said top chinesfor Forming Brake-Shoes, of which; plate.

5 'thedie-block 22,:havi a central passage or opening 23 extendingiro'ugh the same, the upper cutting edge of which, in conjunctionwiththe lower cuttingedge of the punch 15, ",is adapte'd -tuforn'i' thehole or openin ih the steelback, as 'hereinafter described, t e disk'punched from the back fallin or dropping through the opening-in thedie:lock into the 'well or receptacle 19 and down the inclined-.bottoin.p'late-24, Fig. 5, and out of the machine.

My invention relates to .an improvement in brake-shoes, and; moreparticularly to a machine for punching the, 'hole in the steel ormalleable metal back of a molded in the body of the shoe.

' The object of the invention 18 toprovide ain construction and whichwill easily, readily/,

With these and other end in view thef'iIi-i vention consists in certainnovel-featuresmfi construction and combinations "of partspas, will behereinafter} fi' lly described, and pointed out in the claims.

In the accompanyin drawings, Fi e 1 is: a view in perspective 0 myimprove device." Fig. 2 is a horizontal sectional'view thereof,i takenon the line 2 2 of Fig. 3-. Fig. 3 is a bolted-or ptherwise secured thebracket 25, -=provided with the slot 26, in which is adjustablysecuredthe support 27 the latter being 'i-adapted to? .be raised or lowered bybeing turned or rotated in the cla'ni ing-nuts 28.

.In practice one end of the s 0e 29, Fig. 3, consistigiygpf the castbody 30, having cast in or on the u per face or surface thereof thesteel or ma leable metal back 31, is placed .upon the'suppo'rt 27, thelatter being first vertically adjusted to the proper hei ht and also"longitudinally adjusted in the racket toward, or away from the stand 7.in accordance with the" length of the shoe under formation, theopposite end being laced or supported on the die-block 22 an in suchposition that the cored openin 32 will fall directly below and in linewith t e punch 15. The punch is then lowered until its cutting end restson the back 31 of the shoe, as illus- "trated in Fig. 3. By means of ahammer, mallet, or other proper tool 33, Fig. 1, a blow is given to thepunch, whereby a circular hole or opening'is cut in said back 31, thedisk of metal (not shown) cut from the back falling out of the machine,as hereinbefore described. In order to' strip the;.machinethat is,"return the parts'to their normal positions, so that the finished shoemay be removedand another inserted in its place -I secfire'to' thesection, the several parts being shown in their adjustments prior to thepunching of: the hole in the steel back. Fig. 4 is.- ajsec-l for holhingthe the opening in the steel back. Fig. 6 is a detached viewj of thepneumatic barrel forming part of the Referring to the drawings, 7representsthei base or stand, of an inverted-box-like form,; of the sideplates 8, front plate 9,?

cast in one piece and witlf the'flange 1 2,, To is bolted or otherwisesecured the bracket 13, having located thereon the guide-' block 1 1,provided with a central opening same for the passage of the punch 15,the latter at one end being provided with the head or knob 16and at itslower end with a cutting edge. In this guide-block is secured the pin17,- surrounded? by the coil-spring 18, the tendency of ,which latter isto keep the inner end of the pinfin frictional contact with the punch 15in order cured to the inner sides or surfaces of the box or stand 7, thecylinder or barrel 35, containing the piston 36, the latter beingprovided Into said latter opening 21 is fitted- -To. the front plate 9of the base or stand is four brackets or flanges 34, formed on or sewith the piston-rod 37, extending upwardly through an opening formed inthe top 38 of the barrel or cylinder and encircled by the coiled spring39, one end of the latter impinging against the top 38 and the oppositeend against the piston 36, the tendency of said spring being to keep thepiston in its lowered position, as illustrated in Fig. 5.

Into the lower end of the barrel or cylinder 35 leads an air-inlet pipe40, connected to any suitable source of air-pressure, said pipe beingprovided with a three-way cook 41, operated or controlled by the lever42, the latter being held in its normal adjustment by the spring 43.After the hole has been punched in the steel back and the parts assumethe several positions as illustrated in Fig. 5 a pull on the lever 42will allow the air under pressure to pass through the pipe 40 and intothe cylinder 35 below the piston 36, forcing the latter, with itspiston-rod 37, u wardly until said piston-rod striking the lower end ofthe punch 15 will carry the lat ter upwardly to its normal position, asindicated in Fig. 1. Upon releasin the lever 42 it will be returned toits normal position by the spring 43, thereby so turning the cock 41 asto allow the air under pressure in the cylinder to escape. Thereupon thespring 39, which has been compressed by the upward stroke of the piston,will return the latter to its lowered position. (Illustrated in F i 5.)

As the tendency of the pistonrod in li ting or forcin the punch out ofthe o enin in the steel badli is to lift the shoe 0 of t e dieblock 22,I provide a clamping mechanism to hold said shoe in place during thispart of the operation, this clamping mechanism consisting of horizontalbar or rod 44 the ends of which are secured to the vertical posts 45,around which are coiled the springs 46, the upper ends bearing againstsaid rod 44 and the lower ends against the top plate 1 1 of the stand.These rods 45 pass down through openings formed in the upper late 11 oft e stand and have their lower en s linked to the arms 47, keyed to theshaft 48, mounted in the sides 8 of the stand. To one end of this shaft48 is secured the lever 49, the free end being provided with a step 50,whereby to operate the same by foot power. .In the operation of themachine and just prior to turning on the air-pressure for stripping theoperator depresses the lever 49, thereby lowering the rod or bar 44 ontothe shoe, as illustrated in Fig. 5, thereby securely holding or clampingthe shoe onto the die-block. The several parts are held in thesepositions until after the punch has been raised to its normal position,as hereinbefore described, whereupon the lever 49 being released thesprings 46 will raise the bar 44 to its normal osition, and thereby sorelease the shoe that it may be removed from the machine and another oneinserted in its place.

To recapitulate, the shoe is placed in position in the machine, thepunch struck by the mallet 33, the lever 49 lowered to clamp the shoe inplace, and the air-pressure turned on. Finally, the lever 49 is releasedand the shoe removed.

From the foregoing descri tion it will be seen that the machine is simpe and cheap to construct and can be easily, readily, and effectivelyoperated'even by an unskilled workman.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a machine of the character described, the combination with astand, and a punch supported thereby, of means connected with said standfor holding one end of the shoe, a support for holding the opposite endof the shoe, said support being adjustable in a plane parallel with themovement of the punch, and means for raising the punch to its normalposition, substantially as described.

2. A machine of the character described havin in combination a stand, apunch sup; porte thereby, a spring-actuated clamping mechanism forholding one end of the shoe, a bracket fixed to the stand, a support forthe osite end of the shoe, said support being ad ustable in the brackettoward and from the said clampin mechanism, and being also adjustable ina pIane parallel with the movement of the punch, means for holding thepunch in its adjustments, and mechanism for raising said punch to itsnormal position, substantially as described.

3. In a machine of the character described, the combination with astand, of a punch supported on said stand, spring-actuated mechanism forholding one end of the shoe, a lever for operating said mechanism, anadjustable support for the opposite end of the shoe, and means containedwithin said stand and engaging with said punch for raisin the latter toits normal position, substantial y as described.

4. In a machine of the character described, the combination with astand, of a punch supported by said stand, spring-actuated means forholding said punch in its several positions, a sprin -actuated bar forholding one end of said s oe, a lever for o erating said bar, anadjustable support for t e opposite end of the shoe, andpneumatically-operated mechanism contained within said stand andengaging the lower end of said punch for raising the latter to itsnormal position, substantially as described.

Signed at New York, borou h of Manhattan, in the county of New Yor andState of New York, this 15th day of February, A. D.

ELMER J. SNOW.

Witnesses:

GEORGE CooK, M. VAN NoRTwIoK.

